Discusses the operation of sexism in all areas of psychological research, from broad conceptual issues to narrow methodological concerns. It is argued that sexism, in the form of unexamined assumptions about the sexes and unequal treatment of males and females may enter psychological research at any phase of a research project. Three major types of barriers to sex-fair research are identified: excessive confidence in traditional methods of research, bias in explanatory systems, and inappropriate conceptualization and operationalization. A series of recommendations are offered to eliminate some of the most common forms of sexist bias in research and to stimulate critical discussion of practices within psychology that encourage or fail to challenge sexist bias.(103 ref)(PsycINFO Database Record (c) 2016 APA, all rights reserved)